Perera , M. Ángel . 2015. The Expedition of Boundaries in 1750 in the Spanish Guayana: The Success of an Exercise that Never Took-off. Procesos. Revista Ecuatoriana de Historia. 1, 41 (Sep. 2015), 35–62. DOI:https://doi.org/10.29078/rp.v1i41.544.